Feature:1. Quick plug-in pneumatic connector is for quick screwing and quick changing.2. Internal self-locking snap connector supports good airtightness, which is not easy to fall off.3. Made of plastic + all copper nickel plating, the valve is not easy to rust and it is corrosion resistance.4. More durable than you think, it can keep good sealing, which is easy to install.5. In small volume, supporting high pressure resistance, it can keep high tensile resistance.Specification:Item Type: Pneumatic valveMaterial: Plastic + all copper nickel platingFeatures: Fast self-lockingBUC-06 Outer Diameter: Approx. 6mm / 0.24inBUC-08 Outer Diameter: Approx. 8mm / 0.31inBUC-10 Outer Diameter: Approx. 10mm / 0.39inBUC-12 Outer Diameter: Approx. 12mm / 0.47in.Package List:1 x Connector